Quartz Tube Sealing Plugs
High Optical Transmission, Excellent Transmittance, High Clarity, High Light Transmission.
High Temperature Resistance, Excellent Thermal Stability, Heat Resistant up to 1200°C.
Wide Range of Sizes, Full Specifications Available, Various Sizes & Specs, Comprehensive Rang
Acid & Alkali Resistant, High Chemical Resistance, Excellent Corrosion Resistance.
Product size
Product parameters
| Product Name | Quartz Tube Sealing Plugs |
| Material | High-Purity Fused Silica (Quartz Glass) |
| Key Features |
Excellent high-temperature and thermal shock resistance; high chemical purity for process integrity; provides an effective seal for quartz tubes; durable, often with integrated handle. Available in transparent or opaque finishes. |
| Applications |
Essential for sealing quartz process tubes in tube furnaces for controlled atmosphere experiments, material processing (annealing, sintering), chemical reactions, and gas flow systems. |
Quartz Performance Table
| Mechanical Properties | Typical Value | Thermal Properties | Typical Value | Electrical Properties | Typical Value |
|---|---|---|---|---|---|
| Density | 2.2 g/cm³ | Softening Point | 1780°C | Electrical Resistivity | 7 x 107 Ω·cm |
| Compressive Strength | 1100 MPa | Annealing Point | 1250°C | Dielectric Strength | 250 - 400 kV/cm |
| Flexural Strength | 67 MPa | Specific Heat (20-350°C) | 670 J/kg·°C | Dielectric Constant | 3.7 - 3.9 |
| Tensile Strength | 48 MPa | Thermal Conductivity (20°C) | 1.4 W/m·°C | Dielectric Absorption Coefficient | <1 x 10-4 |
| Poisson's Ratio | 0.14 - 0.17 | Refractive Index | 1.4585 | Dielectric Loss Tangent | <1 x 10-4 |
| Young's Modulus | 72000 MPa | Coefficient of Thermal Expansion | 5.5 x 10-7 /°C | ||
| Shear Modulus | 31000 kPa | Working Temperature | 1750 - 2050°C | ||
| Mohs Hardness | 5.5 - 6.5 | Short-Term Service Temperature | 1300°C | ||
| Strain Point | 1280°C | Continuous Service Temperature | 1100°C |
Full specification
Designed to provide a tight seal for quartz process tubes, enabling controlled atmospheres (vacuum or inert gas) and preventing contamination in high-temperature furnace applications.
Heat resistance
Fabricated from high-purity fused silica, offering exceptional resistance to extreme temperatures (e.g., up to 1200°C), thermal shock, and chemical corrosion.
High Transmittance
Robust construction with integrated handles for easy and safe placement/removal. Available in various sizes, with transparent or frosted finishes to suit diverse application needs.
